No apologies needed. The timing is pretty good, we were going to do it in two weeks or so. We've been working on this for about a year now and for the first 8 or 9 months I was telling people that it was usable but not useful. I think it crossed the barrier into useful a few months ago.
I don't know if you've noticed, but we also give the option to write in Markdown. Citations work too, as long as you put them in Latex style, ie \cite{synparb}. Markdown is nearly powerful enough to write a full-featured article, and Latex is clearly overpowered. I like the idea of extending Markdown to give it everything one would need to write an article, without all of the excess.
I hope you try this out on your collaborators.